75-year-old actor played the lead character of Sam Malone in the long-running series, which aired from 1982 to 1993. On Friday, Danson reunited with co-stars George Wendt and John Ratzenberger and “Cheers” co-creators James Burrows, Les Charles and Glen Charles for a panel discussion about the show during the ATX TV Festival in Austin, Texas.While discussing why “Cheers” ended after 11 seasons, Danson admitted that he was behind it.